"""
Defines a rendering area for event updates.

Updates appear in this area when added and disappear after a brief amount of time.

The rendering vector may be aligned from top or bottom, left or right. This works a lot like
textboxes, except that nothing is rendered when empty and the canvas is auto-fitting.

The duration of each item is arbitrary (items in the middle may disappear first). Additionally, an
icon may be associated with each line in the basic implementation.

When an event is added, it can have an optional 'callback' argument, which is a function to call
when the entry diesappears.
"""

